Summary

Recommendation ITU-T H.724 describes the functional components and features that enable the interworking amongst the Internet Protocol television (IPTV) terminal devices defined in Recommendations ITU-T H.721, ITU-T H.722 and ITU-T H.723. ITU-T H.724 complements the specifications of the basic, full-fledged and mobile terminal device models of those Recommendations by specifying the capabilities and functions needed in an IPTV terminal device to enable services or content consumption over multiple IPTV terminal devices. These capabilities and functions include the interworking models, functional roles, application framework, application programming interfaces (APIs), and physical and logical interfaces. In addition, the appendices describe use cases for the interworking models and various multi-device synchronization schemes.